Replacing
the
power
supply
Attention
Never
remove
the
cover
on
a
power
supply
or
any
part
that
has
the
following
label
attached.
Hazardous
voltage,
current,
and
energy
levels
are
present
inside
any
component
that
has
this
label
attached.
There
are
no
servicable
parts
inside
these
components.
1.
Remove
the
cover.
See
“Removing
the
cover”
on
page
114.
2.
Remove
the
drive
bay
assembly.
See
“Removing
and
replacing
the
drive
bay
assembly”
on
page
118.
3.
Disconnect
all
power
supply
cables
from
the
drives.
4.
Disconnect
all
power
supply
cables
from
the
system
board.
See
“Identifying
parts
on
the
system
board”
on
page
116.
5.
Remove
the
hard
disk
drive.
See
“Replacing
the
hard
disk
drive”
on
page
140.
6.
The
system
board
must
be
moved
out
of
the
way
to
remove
the
power
supply.
Remove
the
screws
that
secure
the
system
board
to
the
chassis
and
slide
the
system
board
away
from
the
power
supply.
Note:
You
do
not
have
to
remove
the
system
board
from
the
chassis
to
remove
the
power
supply.
7.
At
the
rear
of
the
chassis,
remove
the
three
screws
that
secure
the
power
supply.
Also
remove
the
screw
that
secures
the
power
supply
at
the
front.
8.
Lift
the
power
supply
out
of
the
chassis.
9.
Install
the
new
power
supply
and
install
the
three
screws
that
secure
the
power
supply
at
the
rear
of
the
chassis
and
install
the
screw
that
secures
the
power
supply
at
the
front.
Chapter
9.
Replacing
FRUs
(Types
7390,
7391,
7392,
7396,
7397,
and
7398)
123
Summary of Contents for 7387
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